Tread portion of an automobile tire



FIG. 1 is a front view of the tread portion of an automobile tire showing my new design, it being understood that the pattern repeats uniformly throughout the circumference of the tread;

FIG. 2 is a top view thereof;

FIG. 3 is a side view thereof; the opposite side being identical thereto;

FIG. 4 is a perspective view thereof;

FIG. 5 is a fragmentary enlarged front view showing the details of the tread portion thereof;

FIG. 6 is a section view taken along line 6-6 in FIG. 5; and,

FIG. 7 is a section view taken along line 7-7 in FIG. 5.

Broken lines in the drawing figures are intended to show portions of the tire that are not being claimed, and thus form no part of the claimed invention. 

CLAIM The ornamental design for a tread portion of an automobile tire, as shown and described. 